SQL Server

https://www.red-gate.com/simple-talk/sql/sql-training/the-sql-server-query-optimizer/to understand how to write SQL Server SQL code, How the query optimizer works is important. The SQL Server query optimizer is acost-based optimizer。 Itanalyze many

1. Open SQL Server Management Studio, select Tools->sql Server Profiler, or direct from path: Start/program/microsoft SQL Server R2/performance Tools/sql Server Profiler.2. After connecting to the database, directly open the tracking new interface,

Original: A lightweight backup restore operation that uses database snapshots in SQL Server to complete a database in a test environmentIn the development or testing environment of the database, often found that there are developers or testers

Original: SQL Server prevents schema changes from being manually fixed in replication to synchronize fields that are added separately in the publication and subscriptionAs a result of previous needs, the replication schema change was forbidden, and

1. Database Optimization SpecificationA. IndexEach table requires a primary key, and it is not necessary to force a clustered index on the primary key.Clustered index, the data stored in the table is stored in the order of the index, that is, the

ObjectiveIn this section, we will continue to explain the problems in SQL Dynamic queries as we finish our SQL dynamic queries.SQL Dynamic Query condition filtering filteringWhen we create a stored procedure to call a stored procedure, filter if the

SQL Server Profiler can detect statements executed on the data, especially if some projects do not directly use SQL statements, directly using the ORM framework of the system to process the database project, when debugging SQL statements, it is very

Deadlock Overview Typically, the simplest and most common deadlocks occur at different table levels,Session 1 The first step to modify a table, the second step to modify the B table,Session 2 The first step to modify the B table, the second

First of all, I want to say, I really is slag, a this thing to get a half-day, forget, directly into the subject bar.The first step:Write the stored procedure first.You have two tables, you build it yourself.

1. What is "blocking"?Blocking is a side effect of the SQL database application "lock" mechanism. When an application request is locked for a database object (such as a full table, a row of data, or a data page), the lock blocks other application

I have a business here that requires the customer to fill in the ID number, automatically calculate his birth date and ageIn SQL, the specific stored procedure implementation is this:/*********************************************** date and age of

1. It is a sub-database rather than a sub-table, which requires consideration of the introduction of a sub-table algorithm, but also affects subsequent queries.2. Thermal data is only part of the total data, so every time we first query the hot

Revit software can export model data to SQL Server database, sometimes, in order to do data analysis of the model, you need to export the data of the model, the following summarizes the export process:First set up a database in SQL Server, such as:

SQL Server 2008 reported the following error when configuring the Distribution Wizard:Use the agent XPs option to enable SQL Server Agent extended stored procedures on this server. If you disable this option, SQL Server Management Studio Object

My Russian name is "do not toss uncomfortable", so, do not put the partition table A good toss, I am not comfortable.In the previous section, we discussed how to create a partitioned table directly and how to convert a normal table into a

I. Querying the database (Sys.databases--select *from sys.databases where name= ' ')Select *fromwhere name='MyDatabase'Second, query table (sysobjects--select *from sysobjects where id=object_id (' '))Select *fromwhere id=object_id ('studentsinfo')

C # Several ways to connect to a SQL Server database--server+data source, etc.How do I connect to a database using connection objects?For the different. NET data provider, ADO. NET uses different connection objects to connect to the database. These

SQL Server database scheduled automatic backupThis article is from reprint: http://www.cnblogs.com/zhangq723/archive/2012/03/13/2394102.htmlPrerequisite: Before using the backup method below, you need to make sure that your SQL Server Agent service

http://blog.csdn.net/sqlserverdiscovery/article/details/7712068 Column name Data Type Description Blocked smallint ID of the session is blocking the request. If This

Detailed description of SQL Server table and index storage structure, SQL Server This article analyzes in detail the principles of table and index structure storage in SQL Server and how to speed up search and improve efficiency. The following is